CN205898283U - Belt weigher electron calibration equipment - Google Patents
Belt weigher electron calibration equipment Download PDFInfo
- Publication number
- CN205898283U CN205898283U CN201620685637.3U CN201620685637U CN205898283U CN 205898283 U CN205898283 U CN 205898283U CN 201620685637 U CN201620685637 U CN 201620685637U CN 205898283 U CN205898283 U CN 205898283U
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- calibration equipment
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Abstract
The utility model provides a belt weigher electron calibration equipment the inside of terminal box (1) is provided with calibration equipment, resistance R1's one end respectively with compensated resistance's I (5) one end, resistance R4's one end is connected, resistance R1's the other end respectively with resistance R2's one end, output port uo's one end is connected, I (5) the other end of compensated resistance respectively with the one end of check -up resistance (6), input power ui's port is connected, resistance R2's the other end respectively with resistance R3's one end, compensated resistance's II (4) one end is connected, resistance R3's other end difference connecting resistance R4's the other end, the other end of check -up resistance (6), output port uo's the other end is connected, input power ui's port is connected to compensated resistance's II (4) the other end. The device simple structure can carry out the multrirange check -up to electronic belt conveyor scale, realizes different range check -ups through the size that changes high accuracy check -up resistance, uses manpower sparingly, material resources and financial resources.
Description
Technical field
This utility model is related to a kind of calibration equipment, specifically a kind of belt conveyer scale electronic verification device, belongs to belt conveyer scale school
Test technical field.
Background technology
Belted electronic balance is the one kind simultaneously carrying out the continuous automatic Weighing of material during belt conveyor conveys material
Measuring equipment, feature is that its weighing process is continuously and automatically carried out, and the intervention being not usually required to operator is just permissible
Complete weighing operation.
At present, belted electronic balance verification Application is more: 1. link code is demarcated: the counterweight of standard quality is loaded onto scale frame
Upper object simulating passes through the weight born during scale body；2. chain code is demarcated: the chain code of standard weights is connected into a whole chain, puts
It is placed in above verified belted electronic balance, two ends are fixing；The inconvenience of its weight larger installing/dismounting, but its precision is higher than
Link code is demarcated；3. circulating chain code is demarcated: is by several standard quality blocks, end to end composition closure chain moves with belt conveyor
Dynamic, gravity is continuously acted on belt conveyer scale, check during 0.5 grade of belt conveyer scale can be used；4. materials calibration: used
Material is same or like with actual fed material, but above-mentioned method of calibration complex structure, need using heavy counterweight
The effect of verification can be reached, error in data often occurs in checking procedure, data is inaccurate, and does not enable multrirange school
Test, be not suitable for widely using.
Content of the invention
The problem existing for above-mentioned prior art, this utility model provides a kind of belt conveyer scale electronic verification device, this dress
Put structure simple, multrirange verification can be carried out to belted electronic balance, the size verifying resistance by changing high accuracy is realized not
Same range check, saves human and material resources and financial resources.
To achieve these goals, this utility model provides a kind of belt conveyer scale electronic verification device, including being arranged on belt
The rosette of conveyer bottom, in the calibration equipment that is internally provided with of described rosette, described calibration equipment is by weighing and sensing
Device, compensation resistance, compensation resistance, display and verification resistance composition, LOAD CELLS includes resistance r1, resistance r2, resistance
One end of r3 and resistance r4, resistance r1 is connected with one end of the one end compensating resistance, resistance r4 respectively, the other end of resistance r1
Be connected with one end of resistance r2, one end of output port uo respectively, compensate the resistance other end respectively with verification resistance one end,
The port of input power ui connects, and the other end of resistance r2 is connected with one end of resistance r3, one end of compensation resistance respectively, electricity
The other end of resistance r3 connects the other end connection of the other end of resistance r4, the other end of verification resistance, output port uo respectively, mends
The other end repaying resistance connects the port of input power ui.
Verification resistance is precision resister.
Rosette is arranged on the lower section of belt conveyor by the screwed hole that it is arranged above.
Compared with prior art, this utility model passes through to install rosette in the lower section of belt conveyor, in rosette
Setting calibration equipment, a road precision resister in parallel in this calibration equipment, and by changing the size of precision resister thus reality
The multrirange verification of existing belt conveyer scale, this utility model structure is simple, easy to use, saves substantial amounts of human and material resources and financial resources.
Brief description
Fig. 1 is module map of the present utility model；
Fig. 2 is the circuit theory diagrams of Fig. 1.
In figure: 1, rosette, 2, LOAD CELLS, 3, display, 4, compensate resistance, 5, compensate resistance, 6, verification electricity
Resistance.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of belt conveyer scale electronic verification device, including the rosette 1 being arranged on belt conveyor bottom,
Described rosette 1 be internally provided with calibration equipment, described calibration equipment by LOAD CELLS 2, compensate resistance 5, compensate electricity
Resistance 4, display 3 and verification resistance 6 form, and LOAD CELLS includes resistance r1, resistance r2, resistance r3 and resistance r4, resistance
One end of r1 is connected with one end of the one end compensating resistance 5, resistance r4 respectively, and the other end of resistance r1 is respectively with resistance r2's
One end, one end of output port uo connect, compensate resistance 5 other end respectively with verification one end of resistance 6, input power ui
Port connects, and the other end of resistance r2 is connected with one end of resistance r3, one end of compensation resistance 4 respectively, and resistance r3's is another
End connects the other end connection of the other end of resistance r4, the other end of verification resistance 6, output port uo respectively, compensates resistance 4
The other end connect input power ui port.
Verification resistance 6 is precision resister, and precision resister resistance tolerance is little, and resistance is more stable.
In order that rosette 1 easy accessibility, preferably rosette 1 is arranged on belt by the screwed hole that it is arranged above defeated
Send the lower section of machine.
Operation principle: LOAD CELLS 2 is actually a bridge circuit, resistance r1, resistance r2, resistance r3, resistance r4
For resistance strain gage；Rs is two compensation resistance；Verification resistance 6 school is high accuracy verification resistance.
Strain resistor on four brachium pontis in the case of not being subject to external force, i.e. resistance r1, resistance r2, resistance r3, resistance r4
The electric bridge of composition is balance, and output uo is 0, and when needing verification, high-ranking officers' electrical verification resistance 6 is connected in parallel on one of brachium pontis
On, you can demarcated.
Embodiment
LOAD CELLS 2 input impedance is 385 ω, and output impedance is 350 ω, and sensitivity is 2mv/v, when ui is for 10v,
Full-span output is 20mv, wants to be output as 15mv (i.e. 75% demarcation), through calculating verification resistance 6 ≈ 58.05k ω, in electricity
On resistance r4 brachium pontis, verification resistance 6 in parallel can carry out full scale 75% and demarcates, the impact of its output not excited target power supply ui, always
It is as the size of driving voltage and proportional change, be always the 75% of full scale, further increase the precision of demarcation.
Claims (3)
1. a kind of belt conveyer scale electronic verification device, including the rosette (1) being arranged on belt conveyor bottom it is characterised in that
In the calibration equipment that is internally provided with of described rosette (1), described calibration equipment is by LOAD CELLS (2), compensation resistance
(5) resistance (4), display (3) and verification resistance (6) composition, are compensated, LOAD CELLS includes resistance r1, resistance r2, resistance
One end of r3 and resistance r4, resistance r1 is connected with one end of the one end compensating resistance (5), resistance r4 respectively, and resistance r1's is another
End is connected with one end of resistance r2, one end of output port uo respectively, compensate resistance (5) other end respectively with verify resistance (6)
One end, the port of input power ui connect, the other end of resistance r2 respectively with one end of resistance r3, compensate resistance (4)
One end connects, and the other end of resistance r3 connects the other end of resistance r4, the other end of verification resistance (6), output port uo respectively
The other end connect, compensate resistance (4) the other end connect input power ui port.
2. belt conveyer scale electronic verification device according to claim 1 is it is characterised in that described verification resistance (6) is height
Accuracy resistance.
3. belt conveyer scale electronic verification device according to claim 1 and 2 is it is characterised in that pass through thereon rosette (1)
The screwed hole of face setting is arranged on the lower section of belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685637.3U CN205898283U (en) | 2016-06-30 | 2016-06-30 | Belt weigher electron calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685637.3U CN205898283U (en) | 2016-06-30 | 2016-06-30 | Belt weigher electron calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898283U true CN205898283U (en) | 2017-01-18 |
Family
ID=57771944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620685637.3U Expired - Fee Related CN205898283U (en) | 2016-06-30 | 2016-06-30 | Belt weigher electron calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898283U (en) |
-
2016
- 2016-06-30 CN CN201620685637.3U patent/CN205898283U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200630 |